"She's stable for now," Root says to both of them, because things had gotten dicey for a few minute there, servers nearly overheating, which would have left them without enough space for the Machine. Not enough space would mean memory loss, and there'd be no hope of restoring her to what She was.

But maybe there's still not a lot of hope, considering the work ahead of them.

"Unfortunately," Root goes on to say, "That was the easy part. What comes next would have been Harry's part."

Root's good at what she does; she always has been. And even though the Machine saved her life and gave her a purpose, she knows that Harry is the one who created Her. He knows her subroutines backwards and forwards because he wrote and designed them. He's the maestro and Root knows she's just second fiddle.

More than once since she arrived in Darrow, Root has wished that Harold Finch was there too, but not more than she does today.